SIM card cannot connect to Hong Kong Network operators while roaming
Hello all, I am with the T-Mobile One Plus plan, and I am using a OnePlus 6T phone(unlocked) bought from T-Mobile. I am currently travelling in Hong Kong and my phone has been able to roam with 4G LTE data and recieving text messages from US. In the last couple of days, my phone hasn’t be able to register to any of the following local network providers: CSL 3 China Mobile HK SmarTone HK The phone is currently in the emergency only state, and I ensure I am not in airplane mode. I have attempted the following to troubleshoot: Turned phone on & off), and same issue persist. Put my T-Mobile SIM card to another phone (Samsung A32), and same issue persist. Put a local 3 mobile sim card to my OnePlus 6T(unlocked), and was able to called to local 3 mobile 4G network. Booted OnePlus 6T(unlocked) into safe mode, and same issue persist. Turned off Automatically choose preferred network, and I tried to connect OnePlus 6T(unlocked) manually to each available local network provider, and I got error “Cannot connect to this network provider now, please try later”. Any insight is appreciated! Thank you!